1 Mar 18 - The Southern Ocean – the 20 million-square kilometre stretch of sea that encircles the earth south of the 60th parallel – released vast amounts of carbon dioxide the last time the Earth warmed, scientists say.

26 Feb 18 - A foundation set up by actor Leonardo DiCaprio is one of the investors that worked on a deal that has led to the Seychelles creating protected areas "the size of Great Britain" in the Indian Ocean.

27 Sep 17 - In his sequel to The Blue Planet, David Attenborough will focus on the threats to our oceans and explain why plastic pollution, climate change and overpopulation are problems too urgent to be left to...